If you wish to contribute or participate in the discussions about articles you are invited to join SKYbrary as a registered user
Air Transport Association
From SKYbrary Wiki
A trade association representing North American Aviation, both operators and service providers. It is perhaps best known worldwide for the ATA Classification, a technical numbering system used for aircraft systems by engineering and maintenance organisations and for sponsorship of the MSG-3 process.
For further information on the ATA, visit http://www.airlines.org/aboutata/